if there is impurity on my chest, for example, and I stand under the shower while this impurity is washed away, going down on to the bath through the drain, do I have to wash any body part below that then? For example, do I have to wash the feet, as the water that I washed the impurity with reached my feet?

All perfect praise be to Allah, The Lord of the worlds. I testify that there is none worthy of worship except Allah and that Muhammad is His slave and Messenger.

As for the water with which you wash the impurity and which descended to the lower part of your body – assuming that the impurity was on the chest – then if this water changed with that impurity, it is impure water and its effect must be washed until its impurity ends, but if it is not changed with the impurity, then according to the correct view, it is pure, even if you washed the impurity with it.

Allah knows best.